Get database size

Mon, 16 Feb 2026 14:19:59 +0000

When you are working on a fast-growing project, sooner or later you will have to watch the size of your main database increase. This information will be especially useful when you restore the backup to your staging server. Also, periodically getting the size can help identify an anomaly in the database at an early stage. You will agree, but it will look strange if the size was 2.5 GB for a few hours, and now it is 1 GB and you did not do any manipulations in this database. To find out the size of the database, you just need to run one SQL query:

Docker run

Wed, 11 Feb 2026 13:56:05 +0000

Over the past few years, one of the most popular commands in my terminal has been docker run. With this command, you can get almost any service up and running locally in a matter of seconds. For example, you can run the latest version of Postgresql with just one command:

docker run -d --rm \
  --name postgres18 \
  -v postgres:/var/lib/postgresql/18/docker \
  -p 5432:5432 \
  -e POSTGRES_PASSWORD=postgres \
  postgres:18.1

You can try out the new features of the Ruby language by launching its interactive console like this:

PostgreSQL on Artem Yegorov

Get database size

Docker run